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Editorial Team
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Asked: 2026-05-26T11:34:06+00:00

Code to reproduce: JsonPrimitive a = new JsonPrimitive(<a href=\\/>); //or the same: JsonPrimitive a

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Code to reproduce:

JsonPrimitive a = new JsonPrimitive("<a href=\"\"/>");
//or the same: JsonPrimitive a = new JsonPrimitive(@"<a href=""/>");
Console.WriteLine(a.ToString());
//or Console.WriteLine((string)a);
//On the console screen I got:    "<a href=\""/>"
//Ideal:   "<a href=\"\"/>"

The version of my System.Json.dll is 2.0.5.0. Is it a bug? And what’s the solution?

Aug 2015 UPDATE: It’s a bug and already fixed in MONO. Check the link in my answer below.

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1 Answer

  1. Editorial Team

    It’s proved to be a bug in the assembly System.Json of Mono. JsonValue.cs line 218 & 219 in the method string DoEscapeString (StringBuilder sb, string src, int cur).

    Original:

        sb.Append(src[i++]);
    start = i;

    Fixed:

        sb.Append(src[i]);
    start = i + 1;

    reported to mono team.

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